I strongly disagree that Biden is better than Clinton. Clinton was way better at foreign policy and would’ve been more pragmatic at governing.
Biden was more cuatious during the Obama Admin, especially with regard to Syria and Libya, where HRC wanted to go all in. In the aftermath, it's clear that Biden was overall right. HRC might also have decided against leaving Afghanistan, adding up to more years on a lost cause. In addition, Biden is arguably a better candidate for a GE.
I think the US could have won in Syria if it tried harder. Our impact on Libya has always been overrated, the Libyans were ready to get rid of Gaddafi, regardless. On the note of Afghanistan, it is a benefit for American national security to not have a government in power like the Taliban, who sheltered terrorists when they were last in charge.